Well-strainer.



v PATENTED AUG. 27

J. H. MOEVOY.

WELL STRAINER.

.APP-LIOATION FILED JUNE 29.1906.

Allarney JOSEPH H. MoEVOY, OF HOUSTON, TEXAS.

wnLL-srrnamnn.

Specification of Letters Patent.

Patented Aug. 27, 1907.

Application filed 11111529, 1906. Serial No. 324,099

To all whom it may concern:

Be it known that I, JOSEPH HJMcEvoY, a citizen of the United States, residing at Houston, in the county of Harris, State of Texas, have invented certain new and useful Improvements in WellStrainers, of which the following is a specification, reference being had therein to the accompanying drawing.

'lhisdnvention relates to a well strainer, and particularly to a straining plug adapted to be inserted in a pipe section. v

The invention has for an object to provide a plug having a series of parallel straining slits in the body thereof, said plug being adapted to be inserted in an aperture formed in the side wall of a pipe section.

A further object ofthe invention is to provide a plug f having its opposite faces provided with a series of slits, those in one face being disposed at an angle to those upon the other, together with means for retaining the bars between saidslits in their fixed relation to each other. v i v Other and further objects and advantages of thc invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the draivingsi-Figure l is a perspective of the plug slitted in opposite directions; Fig. 2 is a front elevation thereof; Fig. 3 is a vertical section of the plug inserted in a pipe; Fig. 4 is a front'elevation of a modified form where the plug is formed as a cap Fig. 5 is a vertical section through the same; Fig. 6 is a horizontal section of the cap plug inserted; Fig. 7 is a sectional perspective showing a modified construction of the cap plug; Fig. 8 is a similar view showing a further 1 modification in which the head of the cap is next the interior of the pipe; Fig. 9 is a detail perspective of a modified form showing a slotted disk; Fig. 10 is'a similar view of a cooperating disk; Fig. 11 is a vertical section of the disks shown in Figs. 9 and. 10 assembled; Fig. 12 is a detail perspective of a plug formed of bars connected together; Fig. 13 is a modified form of the plug shown in Fig. 12; Fig. 14 is a detail perspective of a channel strainer; Fig. 15 is a modified form of the same, and Fig. 16 is a perspective of a further modification. f

Like numerals of reference indicate like parts in the severallig'ures of the drawing. 4

The numeral 1 designates thebody of the plug as shown in Figs. 1, 2 and 3 which is provided upon its front with a series of parallel straining slits 2 which leave ribs or bars 3 intermediateof the slits and connected together by the body of the plug. The rear of the plug, as shown in Fig. lis providedwith a cooper ating series of slits t having the intermediate bars 5 between the same and extended at an angle to the slits 2 so as to provide rectangular straining openings of any desired capacity. It will be observed that the slits the plug may be formed from a single piece of material by simply slitting the same upon its opposite faces at an. angle to each other. As shown in Figs. 4, fraud 6 this plug may be formed as a cap9 provided with a peripheral flange 10 and having its head formed with a series of slits 1.1 within the edges thereof. The side walls 12 of this cap are adapted to beinsertcd within the pipe section l3, as shown in Fig. 6, while the slits 11 are tapered or widened inwardly, as shown at 14 in order to freely discharge any material which may collect therein.

The straining slits may be formed in any desired manner, for instance, by punching the head of the cap hereinbefore described, and in order to form them of the desired limited diameter, the side walls of the slits 'may he swaged or forced together, as shown in Fig. 7,

where the head 1-5 f the cap 16 is lirst punched with a 89 series of parallel slits l7 and subsequently pressure is applied to theintcrmediate bars 18 so as to sprcadthe upper face thereof thus partially closing that portion of the slit to render it of the desired diameter and yet leavim the dischar e l9 sullicientl lar e to form a n a a clearance for clogging material. Under shine conditions it is desirable to clean these slits and this may 'be effectually accomplished by using the plug as shown in Fig. 8, wherein the plug cap 20 has its hcad'21 provided with a series of slits 22 which taper toward the 90 outer face of the head having their widest portion at 23 at the inner periphery of the pipe so that they can be conveniently cleaned by a brush or other suitable device inserted in the pipe. In this form the head of the cap is reversed from the position shown in Fig. 6 and disposed at the inner face of the pipe.

in Figs. 9, 10 and 11 a modified form of the invention. is shown wherein the functions of the plugs shown in Figs. 1, 2 and 3 are accomplished by means of the slitted disks, shown in Figs. 9 and 10 which may be used either 10 0 alone or combined, as shown in Fig. 11. The disk 24, as shown in Fig. 9 is provided with a series of parallel straining slits 25 within the body thereof so that the intervening bars 26 are retained by the periphery or edge wall 27 of the disk. The disk shown in Fig. 9 has a greater number of slits than that shown in Fig. 10 and is intended for the front of the strainer, while the disk 28, as shown in Fig. 10 is "provided with horizontally dismsed slits 29, the intermediate bars 30 being secured I together-by the edge portion 31 of the disk, and when these disks are combined or secured together, as shown in Fig. 11', a structure embodying the series of slots disposed at an angle to each other, similar to what is shown in Fig. 1 is secured. I

In Fig. 12 a form of plug is shown in which'the bars 32 are properly spaced apart to form the straining slits 33 and secured together by a cross piece 34 connecting eachof the bars in their proper relation.

A similar construction to that shown in Fig. 12 is dis closed by the modified form shown in Fig. 13, wherein the bars 35 are spaced to form the slits 36 and connected by the cross pieces 37 to retain them in proper spaced relation.

In Fig. 14a channel plug of rectangular configuration is shown and comprises the body portion 38 having a series of parallel straining slits 39 extending entirely across the same so as to leave the intermediate bars 40 which are connected together by the side walls 41 of the plug. v i The same functions may be secured by the modified form shown in Fig. 15, wherein the bars 42 are spaced apart to form the series of straining slits 43 and held in fixed relation by means of the connecting piece 44 disposed at one side thereof, as shown in'Fig. 12.

Fig. -16 shows a modified form in which the plug 45 is radially slitted outwardly from the solid center 46 there of. These slits may be formed by saw kcrfs swaged to form the proper width of straining opening.

These several forms of the plug may be constructed in any desired manner or of any preferred material, the most desirable feature being the formation of the plug for insertion in a pipe section by which the weakening of the pipe due to the slitting of the walls thereof is entirely avoided, and a series of straining slits formed which are not liable to be clogged by gravel, sand or other material, as their extended capacity permits a flow of liquid through at least a portion of the slit which in its action tends to clear the slit of any clogging or interiering material. It will therefore be seen that the invention presents a simple, eiiicient andeconomical construction of straining plug adapted to be used in walls of any desired character.

Having now described my invention and set forth its merits, what I claim and desire to secure by Letters Patent is:-

1. A plug provided with a plurality of parallel straining openings and a supporting body extended transversely across said openings.

2. A plug provided with a plurality of series of parallel straining slits therein. one series of said slits being disposed at an angle to the other.

3. A plugprovided with a plurality of series of parallel straining slits therein, one series of said slits being disposed at an angle to the otherhnd extended entlrely across the body of the plug.

4. A plug provided with a plurality of series of parallel straining slits therein one seriesot said slits being disposed at an angle to the other and tapered to present their greatest diameter at the inner face of the plug.

A plug provided with a plurality of series of parallel straining slits tll0l(-il'l,'0ll' of said series having a greater number of slits than the other and extending at. an angle thereto.

G. A plug comprising a body having upon one face a series of slits and upon the opposite face a series of slits disposed at an angle to the'tirst mentioned series.

7. A plug provided with a body having upon its front. face n'scries of parallel slits extending entirely across the same and upon its rear face with a series of wider slits less in number than the front slits and disposed at an angle thereto.

8. A plug provided with a body having upon its front face :1 series of parallel slits extending entirely across the same and upon its rear face with a series of wider slits less in number than the front slits and disposedat an angle thereto, and a peripheral beveled flange at the front face of said body.

' in testimony whereof, I afiix my signature in presence of two witnesses.

JOSEPH Ii. MclGVOY.

Witnesses EARL 'AHREN, C. B, Woon. 

